Various threads keep talking about the heating elements in a freezer
compartment, or the timer.

But I have a frost-free refrigerator freezer. Does it have heating
elements and a timer?


(BTW, It must work, because I've never had any frost inside. And
there is a tray at the bottom, near the coils, but the only time I've
looked at it was when the fan was stuck at the time and it hadn't been
cooling very much. There was no water in it then.)